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将 .sqlite 文件存储在我的项目文件夹中时，我已成功使用它。我现在正在尝试做同样的事情，除了从在线拉文件而不是在本地存储它。基于此代码的任何建议？我从代码底部收到错误消息“prepare statement 问题”。

    NSData *fetchedData = [NSData dataWithContentsOfURL:[NSURL URLWithString:@"https://www.dropbox.com/s/zpcieluo2qv43vy/builds.sqlite?dl=1"]];
    NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    NSString *filePath = [documentsPath stringByAppendingPathComponent:@"builds.sqlite"];
    [fetchedData writeToFile:filePath atomically:YES];

    NSFileManager *fileMgr = [NSFileManager defaultManager];

    BOOL success = [fileMgr fileExistsAtPath:filePath];
    if (!success) {
        NSLog(@"Cannot locate database file '%@'.", filePath);
    }
    if (!(sqlite3_open([filePath UTF8String], &db) == SQLITE_OK)) {
        NSLog(@"An error has occured.");
    }
    const char *sql = "SELECT * FROM builds";
    sqlite3_stmt *sqlStatement;

    if (sqlite3_prepare(db, sql, -1, &sqlStatement, NULL) != SQLITE_OK) {
        NSLog(@"Problem with prepare statement");
    }
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1 回答 1

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您的保管箱 URL 将不起作用，您需要使用： https ://www.dropbox.com/s/zpcieluo2qv43vy/builds.sqlite?dl=1

或者你只是在下载一个网页......

于 2013-01-25T10:02:17.490 回答